// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_
#define UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_

#include <map>

#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/pickle.h"
#include "ui/base/dragdrop/os_exchange_data.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/image/image_skia.h"
#include "url/gurl.h"

namespace ui {

class Clipboard;

// OSExchangeData::Provider implementation for aura on linux.
class UI_BASE_EXPORT OSExchangeDataProviderAura
    : public OSExchangeData::Provider {
public:
    OSExchangeDataProviderAura();
    ~OSExchangeDataProviderAura() override;

    // Overridden from OSExchangeData::Provider:
    Provider* Clone() const override;
    void MarkOriginatedFromRenderer() override;
    bool DidOriginateFromRenderer() const override;
    void SetString(const base::string16& data) override;
    void SetURL(const GURL& url, const base::string16& title) override;
    void SetFilename(const base::FilePath& path) override;
    void SetFilenames(const std::vector<FileInfo>& filenames) override;
    void SetPickledData(const Clipboard::FormatType& format,
        const base::Pickle& data) override;
    bool GetString(base::string16* data) const override;
    bool GetURLAndTitle(OSExchangeData::FilenameToURLPolicy policy,
        GURL* url,
        base::string16* title) const override;
    bool GetFilename(base::FilePath* path) const override;
    bool GetFilenames(std::vector<FileInfo>* filenames) const override;
    bool GetPickledData(const Clipboard::FormatType& format,
        base::Pickle* data) const override;
    bool HasString() const override;
    bool HasURL(OSExchangeData::FilenameToURLPolicy policy) const override;
    bool HasFile() const override;
    bool HasCustomFormat(const Clipboard::FormatType& format) const
        override;

    void SetHtml(const base::string16& html, const GURL& base_url) override;
    bool GetHtml(base::string16* html, GURL* base_url) const override;
    bool HasHtml() const override;
    void SetDragImage(const gfx::ImageSkia& image,
        const gfx::Vector2d& cursor_offset) override;
    const gfx::ImageSkia& GetDragImage() const override;
    const gfx::Vector2d& GetDragImageOffset() const override;

private:
    typedef std::map<Clipboard::FormatType, base::Pickle> PickleData;

    // Returns true if |formats_| contains a string format and the string can be
    // parsed as a URL.
    bool GetPlainTextURL(GURL* url) const;

    // Actual formats that have been set. See comment above |known_formats_|
    // for details.
    int formats_;

    // String contents.
    base::string16 string_;

    // URL contents.
    GURL url_;
    base::string16 title_;

    // File name.
    std::vector<FileInfo> filenames_;

    // PICKLED_DATA contents.
    PickleData pickle_data_;

    // Drag image and offset data.
    gfx::ImageSkia drag_image_;
    gfx::Vector2d drag_image_offset_;

    // For HTML format
    base::string16 html_;
    GURL base_url_;

    DISALLOW_COPY_AND_ASSIGN(OSExchangeDataProviderAura);
};

} // namespace ui

#endif // UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_AURA_H_
